FIRST PART

Prothomei bhaabi, “what is life?” life maalta ki?

Wikipedia haath tule diyechhe: “There is no universal definition of life; there are a variety of definitions proposed by different scientists. To define life in unequivocal terms is still a challenge for scientists”

Tobe kichhu kichhu common criteria aachhe- jemon:

Organization- kichhu cell ba kosh er safal sangathan.

Metabolism- shokti jogaaR kraa ebong kaaje komme segulo khoroch koraa.

Growth- size e baaRa

Adaptation- environment er hisebe, nijeke change koraa, sei poribesh e nijeke khap khaaiye newa.

Stimuli- nanan poribesh er change er opor protikriyaa

Reproduction- nijer moton notun praanee toiri kore newaa.

Khub bhaalo katha… taahole eitaai daanRalo, je sab pinpRe worker ant, projonone akkhom taara praanee noy! Ki asadhaaron.

Aabar ekta star baa tara, jemon suurjo, energy consume kore aabar khorchaa kore, se holo giye praanee!

bigyanee ra bollen, naa aasole dekhte hobe jeeb ta kosh diye toiri kina, cellular being hole tobei praanee. Seta unicellular (bacteria), baa multicellular (maanush) durokom-I hote pare.

Besh! Jegulo sub-cellular? Jemon virus, baa prion?

Ebaar kintu bigyaneera rege mege nijeder modhyei jhogRaa shuru korlen. Keu keu bollen virus/ prion raa praanee, baakira bollen motei naa. E jhogRaar ekhono mimaangsaa hoyni.

Taarpor ekta hiseb holo, naa DNA! DNA hochchhe, life er muul. DNA chaaRa life hoy naa. Eta besh notun concept. Ekhono er anyathaa pawa jaayni.

Kintu ke bollo, je adou konodin pawa jaabe na?

jekhaane maanush er nijer-i life samporke dhaaronai clear noy. se ki kjore aasha kore je ekta ajaanaa life ke dekhleo se chinte paarbe? ki kore bojha jaabe ekta bhingrohee praanee, satyi-i ‘praanee’?

seta animate hole? kintu naa, gaachh to animate noy. aar ekta remote controlled gaaRi to dibyi animate.

ohhh ki jaala!

taar maane eta bojhaa gelo, je foss kor ekta alien bostu ke dekhei life bole buijhe fela maanusher pokkhe sambhob noy, taake ene kete kute dekhte hobe, taar bhetor ta dekhe tobei bojhaa jaabe, pranee ki naa.

ki bojhaa jabe? kochupoRa!

maanusher existing theory anujaayee life ke jol er opor neerbhorsheel hote hobe, DNA thaakte hobe, carbon based hote hobe.

taa jodi naa hoy?

khub sahaj udaahoron taai dhoraa jaak, jol.

prithibee te samasta praanee joler opor neerborsheel. taader shoreerer beshirbaag angshotaai jol, maanusher shoreere 70% water. ebaar bhaaba jaak, maanush ke uranus e pathano holo, sange sange shoreere sab jol jome borof, lokta awkka! taar maane ki? okhaane benche thaakbar jonye jolta to joruree noy-i, borong bhoyaanok bish!

taahole? keno? ammonia! sabaai sweekar korechhen, je prithibeete jol jemon universal solvent (kaaron temperature aar pressure), hotei paare anya kono grohe ammonia thik sei kaaj taai kore, ebong sekhaane life gojiyechhe ammonia ke ghire. taahole taake life bolaajaabe to?

thik temni, jodi kono life carbon based naa hoye silicon based hoy, taahole taakeo life bolaa jaabe to?

jhaamela kromei baRchhe dekhaa jachchhe, porer baar aalochona koraa jaabe extra terrestrial life koto rokomer hote paare taa niye.

apatoto, khide peyechhe, aami chollum.

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